OITracker Cboe delayed data

Contract OI history

Back to BRK.B

Nov 20, 2026 EXPIRATION

BRK.B $495.00 Put

BRKB261120P00495000

Latest saved OI489Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BRK.B $495.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5492740 2026-10-02: 434 OI2026-10-05: 439 OI2026-10-06: 489 OI2026-10-07: 503 OI2026-10-08: 503 OI2026-10-09: 549 OI2026-10-13: 495 OI2026-10-14: 495 OI2026-10-15: 487 OI2026-10-16: 486 OI2026-10-21: 487 OI2026-10-23: 489 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BRK.B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing489+2
Oct 21, 2026487+1
Oct 16, 2026486-1
Oct 15, 2026487-8
Oct 14, 20264950
Oct 13, 2026495-54
Oct 09, 2026549+46
Oct 08, 20265030
Oct 07, 2026503+14
Oct 06, 2026489+50
Oct 05, 2026439+5
Oct 02, 2026434No prior observation